ion engine
English Thesaurus
1. a type of reaction-propulsion engine to propel rockets in space; a stream of positive ions is accelerated to a high velocity by an electric field (noun.artifact)
| hypernym | : | reaction engine, reaction-propulsion engine, |
| definition | : | a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream (noun.artifact) |
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